/* ===================================
   Librairie Papyrus - Styles
   Couleurs: Orange #FF6600, #FFA500, Gris #666666
   =================================== */

/* ===================================
   VARIABLES & RESET
   =================================== */

:root {
    /* Couleurs principales Papyrus */
    --primary-orange: #FF6600;
    --secondary-orange: #FFA500;
    --dark-gray: #666666;
    --light-gray: #f5f5f5;
    --white: #FFFFFF;
    --black: #1a1a1a;
    --text-dark: #2d2d2d;
    --text-light: #7a7a7a;
    
    /* Couleurs supplémentaires */
    --orange-light: #FFB84D;
    --orange-dark: #E65C00;
    --gray-border: #e0e0e0;
    --overlay: rgba(0, 0, 0, 0.8);
    --shadow: rgba(0, 0, 0, 0.1);
    
    /* Typographie */
    --font-primary: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-xxl: 4rem;
    
    /* Border radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    
    /* Transitions */
    --transition: all 0.3s ease;
    --transition-fast: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    color: var(--text-dark);
    line-height: 1.6;
    background-color: var(--white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* ===================================
   TYPOGRAPHY
   =================================== */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--black);
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: var(--spacing-md);
    color: var(--black);
}

.section-subtitle {
    text-align: center;
    font-size: 1.125rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-xl);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* ===================================
   BUTTONS
   =================================== */

.btn-primary {
    background: linear-gradient(135deg, var(--primary-orange) 0%, var(--secondary-orange) 100%);
    color: var(--white);
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    gap: 0.25rem;
    box-shadow: 0 4px 15px rgba(255, 102, 0, 0.3);
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 102, 0, 0.4);
}

.btn-primary small {
    font-size: 0.8rem;
    font-weight: 400;
    opacity: 0.9;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1.125rem;
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-orange);
    padding: var(--spacing-sm) var(--spacing-lg);
    border: 2px solid var(--primary-orange);
    border-radius: var(--radius-lg);
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}

.btn-secondary:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

/* ===================================
   HEADER & NAVIGATION
   =================================== */

.header {
    background-color: var(--white);
    box-shadow: 0 2px 10px var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    gap: var(--spacing-md);
}

.nav-logo {
    display: flex;
    flex-direction: column;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--black);
    letter-spacing: -0.5px;
}

.logo-highlight {
    color: var(--primary-orange);
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-light);
    font-weight: 500;
    margin-top: -0.25rem;
}

.nav-menu {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 0.95rem;
    position: relative;
    padding: 0.5rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-orange), var(--secondary-orange));
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.search-btn,
.cart-btn,
.account-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    background-color: var(--light-gray);
    transition: var(--transition-fast);
    position: relative;
}

.search-btn:hover,
.cart-btn:hover,
.account-btn:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.cart-count {
    position: absolute;
    top: -5px;
    right: -5px;
    background: var(--primary-orange);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.mobile-menu-btn {
    display: none;
    font-size: 1.5rem;
    color: var(--text-dark);
}

/* ===================================
   SEARCH OVERLAY
   =================================== */

.search-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay);
    z-index: 2000;
    display: none;
    align-items: flex-start;
    justify-content: center;
    padding-top: 5rem;
}

.search-overlay.active {
    display: flex;
}

.search-container {
    background-color: var(--white);
    width: 90%;
    max-width: 700px;
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    position: relative;
    max-height: 80vh;
    overflow-y: auto;
}

.search-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.25rem;
}

.search-close:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.search-box {
    position: relative;
    margin-bottom: var(--spacing-md);
}

.search-icon {
    position: absolute;
    left: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
    font-size: 1.25rem;
}

.search-input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) 3.5rem;
    border: 2px solid var(--gray-border);
    border-radius: var(--radius-lg);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition-fast);
}

.search-input:focus {
    outline: none;
    border-color: var(--primary-orange);
}

.search-results {
    display: grid;
    gap: var(--spacing-sm);
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
    position: relative;
    min-height: 600px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    padding: var(--spacing-xxl) 0;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(135deg, rgba(255, 102, 0, 0.1) 0%, rgba(255, 165, 0, 0.1) 100%),
        url('data:image/svg+xml,%3Csvg width="60" height="60" viewBox="0 0 60 60" xmlns="http://www.w3.org/2000/svg"%3E%3Cg fill="none" fill-rule="evenodd"%3E%3Cg fill="%23ffffff" fill-opacity="0.05"%3E%3Cpath d="M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z"/%3E%3C/g%3E%3C/g%3E%3C/svg%3E');
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at center, transparent 0%, rgba(0, 0, 0, 0.4) 100%);
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.citation-box {
    background: rgba(255, 255, 255, 0.95);
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-xl);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    position: relative;
}

.quote-icon {
    color: var(--primary-orange);
    font-size: 3rem;
    opacity: 0.3;
    margin-bottom: var(--spacing-sm);
}

.citation-text {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    line-height: 1.6;
    color: var(--black);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
    font-style: italic;
}

.citation-author {
    font-weight: 700;
    font-size: 1.125rem;
    color: var(--primary-orange);
    margin-bottom: 0.25rem;
}

.citation-source {
    font-size: 0.95rem;
    color: var(--text-light);
    font-style: italic;
}

.hero-cta {
    color: var(--white);
}

.hero-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.9;
}

/* ===================================
   FEATURED SLIDER
   =================================== */

.featured-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-gray);
}

.featured-slider {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: var(--spacing-sm);
}

.slider-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--white);
    color: var(--primary-orange);
    border: 2px solid var(--primary-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.slider-btn:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

/* ===================================
   BOOK CARD
   =================================== */

.book-card {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 2px 10px var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.book-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.2);
}

.book-cover {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    background: linear-gradient(135deg, var(--light-gray) 0%, var(--gray-border) 100%);
}

.book-info {
    padding: var(--spacing-md);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.book-title {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--black);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.book-author {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.book-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-sm);
}

.book-rating {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.book-rating i {
    color: var(--secondary-orange);
}

.book-duration {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.book-price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-orange);
    margin-bottom: var(--spacing-sm);
}

.book-actions {
    display: flex;
    gap: var(--spacing-xs);
    margin-top: auto;
}

.btn-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--light-gray);
    color: var(--text-dark);
    transition: var(--transition-fast);
}

.btn-icon:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.btn-add-cart {
    flex: 1;
    padding: var(--spacing-sm);
    background-color: var(--primary-orange);
    color: var(--white);
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-add-cart:hover {
    background-color: var(--orange-dark);
}

/* ===================================
   CATEGORIES
   =================================== */

.categories-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.category-card {
    background-color: var(--light-gray);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    border: 2px solid transparent;
}

.category-card:hover {
    background-color: var(--white);
    border-color: var(--primary-orange);
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.15);
}

.category-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-orange) 0%, var(--secondary-orange) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.category-name {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
    color: var(--black);
}

.category-count {
    font-size: 0.95rem;
    color: var(--text-light);
}

/* ===================================
   UNLIMITED SECTION
   =================================== */

.unlimited-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-gray);
}

.filters {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
    justify-content: center;
    flex-wrap: wrap;
}

.filter-select {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 2px solid var(--gray-border);
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-family: inherit;
    background-color: var(--white);
    color: var(--text-dark);
    cursor: pointer;
    transition: var(--transition-fast);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary-orange);
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.load-more-container {
    text-align: center;
}

/* ===================================
   BENEFITS SECTION
   =================================== */

.benefits-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.benefit-card {
    text-align: center;
}

.benefit-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto var(--spacing-md);
    background: linear-gradient(135deg, var(--primary-orange) 0%, var(--secondary-orange) 100%);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.benefit-title {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--black);
}

.benefit-text {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===================================
   SUBSCRIPTION CTA
   =================================== */

.subscription-cta {
    padding: var(--spacing-xxl) 0;
    background: linear-gradient(135deg, var(--primary-orange) 0%, var(--secondary-orange) 100%);
    color: var(--white);
    text-align: center;
}

.cta-title {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--white);
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.95;
}

/* ===================================
   FEATURES SECTION
   =================================== */

.features-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-gray);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    background-color: var(--white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.15);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto var(--spacing-md);
    background-color: var(--light-gray);
    color: var(--primary-orange);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
}

.feature-title {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-sm);
    color: var(--black);
}

.feature-text {
    color: var(--text-light);
    line-height: 1.6;
}

/* ===================================
   AUTHORS SECTION
   =================================== */

.authors-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--white);
}

.authors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.author-card {
    background-color: var(--light-gray);
    padding: var(--spacing-lg);
    border-radius: var(--radius-lg);
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
}

.author-card:hover {
    background-color: var(--white);
    box-shadow: 0 8px 25px rgba(255, 102, 0, 0.15);
    transform: translateY(-5px);
}

.author-image {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    margin: 0 auto var(--spacing-md);
    border: 4px solid var(--primary-orange);
}

.author-name {
    font-size: 1.125rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    color: var(--black);
}

.author-books {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===================================
   FAQ SECTION
   =================================== */

.faq-section {
    padding: var(--spacing-xxl) 0;
    background-color: var(--light-gray);
}

.faq-grid {
    max-width: 800px;
    margin: 0 auto;
    display: grid;
    gap: var(--spacing-md);
}

.faq-item {
    background-color: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--black);
    background-color: transparent;
    transition: var(--transition-fast);
}

.faq-question:hover {
    background-color: var(--light-gray);
}

.faq-question i {
    color: var(--primary-orange);
    transition: var(--transition);
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p,
.faq-answer ul {
    padding: 0 var(--spacing-lg) var(--spacing-md);
    color: var(--text-dark);
    line-height: 1.6;
}

.faq-answer ul {
    list-style: disc;
    padding-left: calc(var(--spacing-lg) + 20px);
}

.faq-answer li {
    margin-bottom: 0.5rem;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
    background-color: var(--black);
    color: var(--white);
    padding: var(--spacing-xxl) 0 var(--spacing-lg);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.footer-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.footer-text {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.social-links {
    display: flex;
    gap: var(--spacing-sm);
}

.social-link {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    transition: var(--transition-fast);
}

.social-link:hover {
    background-color: var(--primary-orange);
}

.footer-heading {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--white);
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--primary-orange);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* ===================================
   MODAL
   =================================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay);
    z-index: 3000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--white);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-border);
}

.modal-title {
    font-size: 1.5rem;
    color: var(--black);
}

.modal-close {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
    font-size: 1.25rem;
}

.modal-close:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.modal-body {
    padding: var(--spacing-lg);
    flex: 1;
}

.modal-footer {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--gray-border);
}

/* ===================================
   AUDIO PLAYER MODAL
   =================================== */

.audio-player-modal {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: 0 -4px 20px var(--shadow);
    z-index: 2000;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.audio-player-modal.active {
    transform: translateY(0);
}

.audio-player-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--spacing-lg);
    position: relative;
}

.player-close {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background-color: var(--light-gray);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-dark);
}

.player-close:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.player-info {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
    align-items: center;
}

.player-cover {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-md);
    object-fit: cover;
}

.player-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 0.25rem;
}

.player-author {
    font-size: 0.95rem;
    color: var(--text-light);
}

.player-controls {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.progress-bar {
    position: relative;
    width: 100%;
    height: 6px;
    background-color: var(--gray-border);
    border-radius: 3px;
}

.progress-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: linear-gradient(90deg, var(--primary-orange), var(--secondary-orange));
    border-radius: 3px;
    pointer-events: none;
}

.progress-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.time-display {
    display: flex;
    justify-content: space-between;
    font-size: 0.875rem;
    color: var(--text-light);
}

.control-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
}

.control-btn {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--light-gray);
    color: var(--primary-orange);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

.control-btn:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.control-btn-main {
    width: 60px;
    height: 60px;
    background-color: var(--primary-orange);
    color: var(--white);
    font-size: 1.5rem;
}

.control-btn-main:hover {
    background-color: var(--orange-dark);
}

.player-options {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: var(--spacing-md);
}

.option-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--light-gray);
    color: var(--text-dark);
    border-radius: var(--radius-md);
    font-weight: 600;
}

.option-btn:hover {
    background-color: var(--primary-orange);
    color: var(--white);
}

.volume-slider {
    width: 120px;
    height: 6px;
    border-radius: 3px;
    background-color: var(--gray-border);
    appearance: none;
}

.volume-slider::-webkit-slider-thumb {
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background-color: var(--primary-orange);
    cursor: pointer;
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
    .section-title {
        font-size: 2rem;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .citation-text {
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background-color: var(--white);
        flex-direction: column;
        padding: var(--spacing-lg);
        box-shadow: 0 4px 10px var(--shadow);
        transition: var(--transition);
    }
    
    .nav-menu.active {
        left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .citation-text {
        font-size: 1.125rem;
    }
    
    .cta-title {
        font-size: 1.75rem;
    }
    
    .categories-grid,
    .benefits-grid,
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .featured-slider,
    .books-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2rem;
        --spacing-xxl: 3rem;
    }
    
    .logo-text {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.5rem;
    }
    
    .hero {
        min-height: 500px;
    }
    
    .citation-box {
        padding: var(--spacing-lg);
    }
    
    .citation-text {
        font-size: 1rem;
    }
    
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .btn-large {
        padding: var(--spacing-md) var(--spacing-lg);
        font-size: 1rem;
    }
}